ABC learns once is enough for all-star dancers

CAPTION CORRECTION: This November 12, 2012 publicity photo released by ABC shows, from left, Tony Dovolani, Melissa Rycroft, and Henry Byalikov, during a performance on “Dancing with the Stars: All Stars,” in “Episode 1508,”which included two rounds of competition for the seven remaining couples, a Ballroom and Latin Trio round, on the ABC Television Network. There's no second act for celebrities on "Dancing With the Stars," President, ABC Entertainment Group, Paul Lee, said Thursday, Jan. 10, 2013, that was the lesson from the past few months, when the network brought back some favorite contestants from its long-running competition series and the show fell flat. (AP Photo/ABC, Adam Taylor)